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RISUnstable Waves on Oceanic Fronts: Large Amplitude Behavior and Mean Flow Generation
Publisher: American Meteorological Society
Abstract: A primitive equation numerical model is used to study the large amplitude behavior of unstable waves on an oceanic density front, concentrating on a single wave mode corresponding to the fastest growing linear solution. ...
Time Step Sensitivity and Accelerated Spinup of an Ocean GCM with a Complex Mixing Scheme
Publisher: American Meteorological Society
Abstract: The distorted physics (DP) technique of Bryan and Lewis is applied to an ocean GCM to allow longer time steps to be taken. The model includes a hybrid vertical mixing scheme for tracers, consisting of a Kraus?Turner mixed ...
THE INVERSION “BRIGHT BAND”
Publisher: American Meteorological Society
Abstract: Previous discussions of the ?bright band,? a radar phenomenon associated with the freezing level, have treated it as related to a ?normal? lapse rate?a progressive decrease of temperature with height, with surface temperatures ...
Processes Governing the Recovery of a Perturbed Thermohaline Circulation in HadCM3
Publisher: American Meteorological Society
Abstract: In an experiment with the latest version of the Hadley Centre climate model the model response has been analyzed after the thermohaline circulation (THC) in the Atlantic Ocean has been suppressed. The suppression is induced ...
Reevaluating the Causes of Observed Changes in Indian Ocean Water Masses
Publisher: American Meteorological Society
Abstract: The consistency between observed changes in Subantarctic Mode Water (SAMW) properties at 32°S in the Indian Ocean and model simulations is explored using the Third Hadley Centre Coupled Ocean?Atmosphere GCM (HadCM3). ...
An Intercomparison of a Bryan–Cox-Type Ocean Model and an Isopycnic Ocean Model. Part I: The Subpolar Gyre and High-Latitude Processes
Publisher: American Meteorological Society
Abstract: This paper describes a model intercomparison between a Bryan-Cox-type ocean model and an isopycnic-coordinate ocean model. The two models are integrated for 30 years on a domain of the North Atlantic stretching from 20°S ...
An Intercomparison of a Bryan-Cox-Type Ocean Model and an Isopycnic Ocean Model. Part II: The Subtropical Gyre and Meridional Heat Transport
Publisher: American Meteorological Society
Abstract: In a companion paper, two ocean general circulation models were implemented in order to simulate and intercompare the main features of the North Atlantic circulation: the Atlantic Isopycnic Model (AIM) and the Hadley Centre ...
A Mechanism of Internal Decadal Atlantic Ocean Variability in a High-Resolution Coupled Climate Model
Publisher: American Meteorological Society
Abstract: he North Atlantic Ocean subpolar gyre (NA SPG) is an important region for initializing decadal climate forecasts. Climate model simulations and paleoclimate reconstructions have indicated that this region could also exhibit ...
Locations and mechanisms of ocean ventilation in the high-latitude North Atlantic in an eddy-permitting ocean model
Publisher: American Meteorological Society
Abstract: A substantial fraction of the deep ocean is ventilated in the high-latitude North Atlantic. Consequently, the region plays a crucial role in transient climate change through the uptake of carbon dioxide and heat. However, ...